Improvement in gang-plows



z. 'n sWEEnoE EUGENE CITY, OREG-0N. Letters Patent No. 85,621, dated .Tanna/ry 5,A 1869,

IMPROVEIMENT IN' GANG-PLOWS.

To all whom it ma/y concern.-

Be it known that I, Z. T. SWEET, of Eugene City,

in the county of Lane, and State of Oregon, have iuvented a new and useful Improvement in Gang-Blows;

and I do hereby declare that the following is a full, clear,- and exact description thereof', which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, formingpart of this specification, in which- Figure 1 is a plan or top view of my invention. Figure 2 is a` rear view of a poition'of the same,

- partly in section.

Figure 3 is a side sectional view of the same, taken in the line a; x, iig. 1.

Similar letters of reference indicate'like parts.

This invention relates to anew and improved gangplow, of that class which are provided with a drivers seat, and are commonly termed sulky-plows.

The invention consists in the combination of devices, whereby the plow-beams are raised and lowered by the vfoot of the driver.

' slide, c, which is tted. in an upright guide, d, attached to one end of the axle A, and D is a lever, of bent or right-angular form, which has its fulcrum-pin, e, in an upright, f, on the axle.

One arm of this lever is fitted in the slide c, and the other arm extends upward, within convenient reach of the driver on his seat, E, the lever being retained in position at any point within the scope of its movement by a rack, dx, shown clearly in fig. 1. It will be ,seen that the weight of the frame forces the lever inward to engage with the rack dx, and that consequently the lever is locked in any desired position by means of such Weight.

This wheel Bis the land-wheel, and it will be seen that by the arrangement described it may run on a higher plane or level than the other or furrowed'wheel,

B', and the machine and plows vkept in a horizontal position. l

The wheel B also has its arm, b', attached to a slide, c, fitted ina guide, d', but the slider is secured in its v. guide, d', at a greater or less height, by a screw-bolt, e,

as this wheel does not require tobe adjusted frequently, but only at the commencement of work, and according to the depth of furrow required.

The land-wheel B, however, may require to be adjusted, or, more strictly speaking, the side of the ma chine near said wheel may require to be raised Q1' lowered quite frequently, especially when uneven ground is being plowed, in order that the machine may work horizontally.

F F represent the plows, which are attached to beams G G, which work'on a bolt, g, the latter passing through the bals a, a.

To a cross-bar, h, betweenthe beams G G, there is secured a catch, t, shown clearly invig. 3.

H is a spring, which is attached to a shaft, I, and to the cross-bar h, by astaple, hX.

The bearings of this shaft I are on the bars a a.

This shaft has a foot-piece or lever, j, attached to it, and the rear end ofthe spring H engages with the catch t.

This spring, when the driver presses his foot down upon it, keeps the plows to their work.

By relieving the spring of the pressure of the foot, and pressing the latterfagainst the foot-piece or lever j, the plows F may be raised.

The arrangement is extremly simple and eilicient, and may be constructed at a small cost.

Having thus described my invention,

I claim as new, Aand desire to secureby Letters Patent- 1. The combination of the cam-spring H, rock-shaft I, foot-piece j, and staple hX, with the side bars a a, block h, catch t, and beams G, all arranged and operating as described,v for the purpose specified.v

2. The arrangement of the rack d and the angular lever D with the slotted guide-plated upon the axle, and the slide c upon the arm b of the wheel B, Whereby the weight of' the cultivator holds the lever locked in any desired position, as herein shown and described. Witnesses: Z. T. SWEET.

J. B. UNDERWOOD, A. A. SMITE. 

